My Commuters, usual daily weights:
Trek 520 - 43 lbs. (700x35 marathon tires, full fenders, rear rack, panniers, pump, lights, mirror, lock, tools)
Trek Allant - 39 lbs. (700x35 flat protection michelins, steel fenders, rear rack, homemade panniers, tools, pump, lights, mirror)
Schwinn winter bike - 51 lbs (studded winter tires, fenders w/ mud flaps, rack, panniers, tools, lights, mirror, lock, pump, )
They aren't light, but they ride nice on crappy roads in all weather, and rarely need any on-road repairs.
Have Fun!